Adjustment of backfill composition for mineral mining under open pit bottom

Bitimbaev, M. Zh.; Krupnik, L. A.; Aben, E. Kh.; Aben, Kh. Kh.

doi:10.17580/gzh.2017.02.10

Cited by 15 publications

(21 citation statements)

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“…Therefore, in parallel with this main research activity, it is necessary to work on improving the currently used technologies [9]- [13]. At the same time, it is necessary to pay attention to technologies that provide backfilling of cavities in the mined-out space [14]- [17], safe blasting operations [18], [19], as well as detailed production processes planning [20]- [22].…”

Section: Introductionmentioning

confidence: 99%

Substantiation of mining systems for steeply dipping low-thickness ore bodies with controlled continuous stope extraction

Rysbekov¹,

Bitimbayev²,

Akhmetkanov³

et al. 2022

Min. miner. depos.

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Purpose. The solution to one of the important problems of the underground mining method is to substantiate cost-effective, technologically feasible and safe variants for mining steeply dipping low-thickness ore bodies. Methods. Mining systems are substantiated on the basis of a detailed analysis of the developed and existing experiential variants for mining steeply dipping ore bodies, identifying production and economic disadvantages, as well as their causes. Findings.As a result of the research, the pillar raise performance in the mining system with ore shrinkage has been substantiated. The main parameters of the proposed variants for mining systems with ore shrinkage, intended for expansion-type supports and borehole breaking, have been substantiated. A design has been developed of fastening the material-running raises (MRR) and ventilating raises (VR) on the working and ventilation horizons to ensure their performance in the mining system with ore shrinkage. Originality. For the first time, dependences of dilution and labour productivity on the ore body thickness and the type of ore breaking for blast-hole stoping and borehole breaking for a single and “twinned block” have been obtained. In addition, a certain dependence of the loading and delivery performance on the average fractional composition, as well as on the delivery distance, has been obtained. Practical implications. The research is characterized by scientific innovations created for the first time, which are able to ensure the efficiency and safety of mining operations, while creating the ability to manage the loss of minerals and dilution in the block, as well as reaching their calculated optimal ratio in order to achieve the most cost-effective production rate.

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Section: Introductionmentioning

confidence: 99%

Substantiation of mining systems for steeply dipping low-thickness ore bodies with controlled continuous stope extraction

Rysbekov¹,

Bitimbayev²,

Akhmetkanov³

et al. 2022

Min. miner. depos.

View full text Add to dashboard Cite

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“…3) hybrid open-pit/underground, with an open-pit/underground layer between purely open-pit and underground me thods [15,16]; 4) mixed-type underground method combining elements of descending mining with advanced stoping, or with descending-and-ascending mining layer between the upper and lower parts of the ore body at the late mining stage [17,18]; 5) mixed-type mining with physicochemical geotechnologies.…”

Section: Underground Mining Systems and Their Classificationmentioning

confidence: 99%

Improvement and systematization of principles and process flows in mineral mining in the Republic of Kazakhstan

Rysbekov¹,

Bitimbayev²,

Akhmetkanov³

et al. 2022

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The methods and economic parameters of mineral mining are interrelated with the applied technological, structural and organizational solutions. The parameters of individual ore bodies, their occurrence conditions and the totality of natural ore-forming processes govern these engineering solutions.Considering the relationship between such concepts as the integrity, structures and components of a subsoil use system, the basic principles defining a set of production processes for extracting minerals (or commercial component) from the subsoil are formulated. Due to the improvement of tools and technology, the scopes of the synonymic "mineral mining" and "mineral production" concepts expanded. The technological evolution was accompanied by fundamental clarifications and new understanding of the key concepts in scientific cognition and production management. The scientific relevance of the set of systemic principles rested on their application as a practical guide in mining.The key definitions included the validated series of the components and their contents. The proposed formulations have a significant weight both in science and technology as they provide more economically efficient and safe level of organization of underground mining with the system-founded and fool-proof selection of mining methods.

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“…The analysis and definition of the main directions for technological development in mineral mining and processing proves that the existing and operating technological processes in mining and processing need significant improvement and must meet the requirements of a new era which is characterized by complication of mining conditions. Proceeding from this, the technological schemes, depending on geological and geotechnical conditions, should be created on the basis of a new approach to the underground mining method [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%